/********************************************************
Set of Global JavaScript functions to be used
throughout DpiweLib
********************************************************/
/*************************************************
Cookie code from Paul Schofield, Cookie Central
*************************************************/
// function to return the DECODED value of a cookie
// offset - ???
// returns - the decoded value of the cookie ?
function getCookieVal(offset) {
	var endstr = document.cookie.indexOf(";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}
// function to return the value of the cookie specified by NAME
// name - string object containing the cookie name
// returns - string object containing the cookie value, or null if the cookie does not exist
function getCookie(name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i=0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) return getCookieVal(j);
		i = document.cookie.indexOf(" ",i) + 1;
		if (i == 0) break;		
	}
	return null;
}
// function to create or update a cookie
// name - Required string object containing the cookie name
// value - Required string object containing the cookie value.  
// [expires] - Optional date object containing the expiration data of the cookie. 
//		If omitted or null, expires the cookie at the end of the current session.
// [path] - Optional string object indicating the path for which the cookie is valid.
//		If omitted or null, uses the path of the calling document.
// [domain] - Optional string object indicating the domain for which the cookie is valid.
//		If omitted or null, uses the domain of the calling document.
// [secure] - Boolean (true / false) value indicating whether the cookie transmission requires a secure channel (HTTPS)
// The parameters must be passed in the order listed above.
// To omit an unused optional field, use null as a place holder.
// for example, to call setCookie using name, value and path:  
//		setCookie("cookieName", "cookieValue", null, "/");
// trailing omitted parameters do not require a placeholder.
// To set a secure cookie for path "/myPath" that expires after the current session, you might code:
//	setCookie(myCookieVar, cookieValueVar, null, "/myPath", null, true);
function setCookie(name, value, expires, path, domain, secure) {
//	document.cookie = name + "=" + escape(value) + 
document.cookie = name + "=" + value + 
		( (expires) ? "; expires=" + expires.toGMTString() : "") + 
		( (path) ? "; path=" + path : "") + 
		( (domain) ? ";domain=" + domain : "") + 
		( (secure) ? "; secure" : "");
}
// function to delete a cookie (sets expiration date to start of epoch)
// name - string object containing the cookie name
// path - string object containing the path of the cookie to delete.
//	 this MUST be the same as the path used to create the cookie, 
//	or null/omitted if no path was specified when creating the cookie
// domain - string object containing the domain of the cookie to delete.
//	 this MUST be the same as the domainused to create the cookie, 
//	or null/omitted if no domain was specified when creating the cookie
function deleteCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + "=" + 
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain: "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}
function getDBPath() {
	var pathname = window.location.pathname;
	var iPos = window.location.pathname.toString().toLowerCase().lastIndexOf('.nsf/');
	if(iPos>0) return pathname.substring(0, iPos+5);
	
	return pathname; 
}
function login() {
	setCookie('browseLogin', window.location.href, null, "/");
	parent.window.location.href = getDBPath() ;
}
function setElementClassName(elemID, newClass) {
	document.getElementById(elemID).className = newClass;
}
function quickSearch() {
	frm = document.forms[0];
	// set cookies for the Refine Search option
	// if user clicks on the Refine Search button in the Search Results page
	// the Advanced search form is loaded, with the existing query keywords preloaded
	// in the corresponding fields
	
	setCookie('Query', document.forms[0].newquery.value, null, "/");
	setCookie('lookfor', '0', null, "/");
		
	setCookie('lookIn', '0', null, "/");  // cookie value is the selected index of the html select field
		
	setCookie('Query2', '', null, "/");
	setCookie('lookfor2', '0', null, "/");
	setCookie('lookIn2', '0', null, "/");
	
	setCookie('Format', '0', null, "/");
		
	setCookie('Location', '0', null, "/");
	setCookie('when', '0', null, "/");
	setCookie('PubDate', '', null, "/");
		
	frm.submit();
}
function setSearchCookies() {
}